A heat pump heats and cools by moving heat rather than making it, increasingly common in Ontario and BC as gas alternatives, and standard on many newer builds and retrofits. Like an AC condenser, it lives outside and its lifespan is roughly 10 to 16 years.
$8,000 to $20,000 installed in Ontario before rebates (currently up to $7,500)Address soonHeating
The quick answer
A heat pump heats and cools by moving heat rather than making it, increasingly common in Ontario and BC as gas alternatives, and standard on many newer builds and retrofits. Like an AC condenser, it lives outside and its lifespan is roughly 10 to 16 years.
Replacement is a bigger number than most buyers expect: cold-climate air-source units run $8,000 to $20,000 installed in Ontario before rebates. The good news cuts the other way too, Ontario's Home Renovation Savings program currently offers up to $7,500 for qualifying cold-climate heat pumps (and more for ground-source), which materially changes the math on an aging unit. A 12-year-old heat pump isn't an emergency; it's a known future cost you negotiate against.
How to spot it
Read the manufacture date off the outdoor unit's data plate (it's in the model/serial, brand-specific, photograph the whole label). Look for rust on the cabinet, crushed fins, ice buildup outside of deep winter, and a unit that runs constantly without keeping up.
What it costs
$8,000 to $20,000 installed (Ontario, pre-rebate); net cost after current rebates often $4,000 to $12,500. Geothermal/ground-source systems are $25,000 to $45,000.
What to do
Budget and negotiate on units past ~10 years: get the age from the label, ask about service history, and check current rebate programs before pricing the replacement into your offer.
Education and triage, not a home inspection. Casaroo estimates age from your label photo and flags end-of-life risk, an HVAC contractor confirms condition, sizing, and what rebates apply.
Common questions
What is Heat pump age & replacement?
A heat pump heats and cools by moving heat rather than making it, increasingly common in Ontario and BC as gas alternatives, and standard on many newer builds and retrofits. Like an AC condenser, it lives outside and its lifespan is roughly 10 to 16 years.
Why does it matter for home buyers?
Replacement is a bigger number than most buyers expect: cold-climate air-source units run $8,000 to $20,000 installed in Ontario before rebates. The good news cuts the other way too, Ontario's Home Renovation Savings program currently offers up to $7,500 for qualifying cold-climate heat pumps (and more for ground-source), which materially changes the math on an aging unit. A 12-year-old heat pump isn't an emergency; it's a known future cost you negotiate against.
How can I spot it?
Read the manufacture date off the outdoor unit's data plate (it's in the model/serial, brand-specific, photograph the whole label). Look for rust on the cabinet, crushed fins, ice buildup outside of deep winter, and a unit that runs constantly without keeping up.
How much does it cost to fix?
$8,000 to $20,000 installed (Ontario, pre-rebate); net cost after current rebates often $4,000 to $12,500. Geothermal/ground-source systems are $25,000 to $45,000.
Last reviewed 2026-07-10.
This guide is general education, not a home inspection and not advice for your specific property. Always
consult the appropriate licensed professional, and get a licensed home inspection before you remove conditions
or buy. Cost ranges are 2026 estimates that vary by region, size, and access; confirm specifics with a
qualified professional.